| 单词 | pyrrolidine |
| 释义 | pyrrolidine[ pi-roh-li-deen, -din, -rol-i- ] / pɪˈroʊ lɪˌdin, -dɪn, -ˈrɒl ɪ- / noun Chemistry.a colorless, water-soluble, unpleasant smelling, poisonous liquid, C4H9N, from which proline and certain alkaloids are derived, prepared by reducing pyrrole: used chiefly in organic synthesis. Origin of pyrrolidineFirst recorded in 1880–85; pyrrole + -id3 + -ine2 Words nearby pyrrolidinePyrrhonism, pyrrhotite, pyrrhuloxia, Pyrrhus, pyrrole, pyrrolidine, Pyrrophyta, pyrrophyte, pyruvate, pyruvate kinase deficiency, pyruvic Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for pyrrolidinepyrrolidine / (pɪˈrɒlɪˌdiːn) / nounan almost colourless liquid occurring in tobacco leaves and made commercially by hydrogenating pyrrole. It is a strongly alkaline heterocyclic base with molecules that contain a ring of four carbon atoms and one nitrogen atom. Formula: C 4 H 9 N Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for pyrrolidinepyrrolidine [ pĭ-rŏl′ĭ-dēn′ ] n.A nearly colorless liquid pyrrole to which four hydrogen atoms have been added. It has an ammonialike odor and is the structural basis of proline and hydroxyproline. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
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